Ruff-related fixes.

Author: jonathanslenders

src/prompt_toolkit/shortcuts/dialogs.py

@@ -1,7 +1,6 @@
 from __future__ import annotations
 
 import functools
-from asyncio import get_running_loop
 from typing import Any, Callable, Sequence, TypeVar
 
 from prompt_toolkit.application import Application

tests/test_document.py

@@ -1,8 +1,9 @@
 from __future__ import annotations
 
-import pytest
 import re
 
+import pytest
+
 from prompt_toolkit.document import Document